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How to use buildNodePackage method in Jest

Best JavaScript code snippet using jest

pkgs.js

Source:pkgs.js

1var pkgs = {2  stdenv : function() {3    return require('./pkgs/stdenv.js').pkg;4  },5  fetchurl : function() {6    return require('./pkgs/fetchurl').pkg({7      stdenv : pkgs.stdenv8    });9  },10  hello : function() {11    return require('./pkgs/hello.js').pkg({12      stdenv : pkgs.stdenv,13      fetchurl : pkgs.fetchurl14    });15  },16  zlib : function() {17    return require('./pkgs/zlib.js').pkg({18      stdenv : pkgs.stdenv,19      fetchurl : pkgs.fetchurl20    });21  },22  file : function() {23    return require('./pkgs/file.js').pkg({24      stdenv : pkgs.stdenv,25      fetchurl : pkgs.fetchurl,26      zlib : pkgs.zlib27    });28  },29  perl : function() {30    return require('./pkgs/perl.js').pkg;31  },32  openssl : function() {33    return require('./pkgs/openssl.js').pkg({34      stdenv : pkgs.stdenv,35      fetchurl : pkgs.fetchurl,36      perl : pkgs.perl,37      zlib : pkgs.zlib38    });39  },40  curl : function() {41    return require('./pkgs/curl.js').pkg({42      stdenv : pkgs.stdenv,43      fetchurl : pkgs.fetchurl,44      openssl : pkgs.openssl,45      zlib : pkgs.zlib46    });47  },48  wget : function() {49    return require('./pkgs/wget.js').pkg({50      stdenv : pkgs.stdenv,51      fetchurl : pkgs.fetchurl,52      openssl : pkgs.openssl53    });54  },55  sumTest : function() {56    return require('./pkgs/sumTest.js').pkg({57      stdenv : pkgs.stdenv58    })59  },60  writeTextFile : function(args) {61    return require('./pkgs/writeTextFile.js').pkg(args);62  },63  stringWriteTest : function () {64    return require('./pkgs/stringWriteTest.js').pkg({65      writeTextFile : pkgs.writeTextFile66    });67  },68  appendFilesTest : function() {69    return require('./pkgs/appendFilesTest.js').pkg({70      stdenv : pkgs.stdenv71    });72  },73  createFileWithMessageTest : function() {74    return require('./pkgs/createFileWithMessageTest.js').pkg({75      stdenv : pkgs.stdenv76    });77  },78  sayHello : function() {79    return require('./pkgs/sayHello.js').pkg({80      stdenv : pkgs.stdenv81    });82  },83  addressPerson : function() {84    return require('./pkgs/addressPerson.js').pkg({85      stdenv : pkgs.stdenv86    });87  },88  addressPersons : function() {89    return require('./pkgs/addressPersons.js').pkg({90      stdenv : pkgs.stdenv91    });92  },93  addressPersonInformally : function() {94    return require('./pkgs/addressPersonInformally.js').pkg({95      stdenv : pkgs.stdenv96    });97  },98  numbers : function() {99    return require('./pkgs/numbers.js').pkg({100      stdenv : pkgs.stdenv101    });102  },103  sayHello2 : function() {104    return require('./pkgs/sayHello2.js').pkg({105      stdenv : pkgs.stdenv106    });107  },108  objToXML : function() {109    return require('./pkgs/objToXML.js').pkg({110      writeTextFile : pkgs.writeTextFile111    });112  },113  conditionals: function() {114    return require('./pkgs/conditionals.js').pkg({115      writeTextFile : pkgs.writeTextFile116    });117  },118  bzip2 : function() {119    return require('./pkgs/bzip2.js').pkg({120      stdenv : pkgs.stdenv,121      fetchurl : pkgs.fetchurl122    });123  },124  utillinux : function() {125    return require('./pkgs/utillinux.js').pkg({126      stdenv : pkgs.stdenv,127      fetchurl : pkgs.fetchurl,128      zlib : pkgs.zlib129    });130  },131  python : function() {132    return require('./pkgs/python').pkg({133      stdenv : pkgs.stdenv,134      fetchurl : pkgs.fetchurl,135      zlib : pkgs.zlib,136      bzip2 : pkgs.bzip2,137      openssl : pkgs.openssl,138    });139  },140  nodejs : function() {141    return require('./pkgs/nodejs').pkg({142      stdenv : pkgs.stdenv,143      fetchurl : pkgs.fetchurl,144      python : pkgs.python,145      zlib : pkgs.zlib,146      openssl : pkgs.openssl,147      utillinux : pkgs.utillinux148    });149  },150  buildNodePackage : function() {151    return require('./pkgs/nodejs/buildNodePackage.js').pkg({152      stdenv : pkgs.stdenv,153      nodejs : pkgs.nodejs154    });155  },156  optparse : function() {157    return require('./pkgs/optparse.js').pkg({158      buildNodePackage : pkgs.buildNodePackage,159      fetchurl : pkgs.fetchurl160    });161  },162  slasp : function() {163    return require('./pkgs/slasp.js').pkg({164      buildNodePackage : pkgs.buildNodePackage,165      fetchurl : pkgs.fetchurl166    });167  },168  nijs : function() {169    return require('./pkgs/nijs.js').pkg({170      buildNodePackage : pkgs.buildNodePackage,171      fetchurl : pkgs.fetchurl,172      optparse : pkgs.optparse,173      slasp : pkgs.slasp174    });175  },176  underscoreTest : function() {177    return require('./pkgs/underscoreTest.js').pkg;178  },179  HelloModel : function() {180    return require('./pkgs/HelloModel.js').pkg({181      stdenv : pkgs.stdenv,182      fetchurl : pkgs.fetchurl183    });184  }185};...

build.js

Source:build.js

...41    stdout.write(42      `${watch ? 'Build-watching' : 'Building'} ${bold(pkgName)}...\n`43    );44    if (nodePackages.indexOf(pkgName) !== -1) {45      await buildNodePackage(pkgName);46    } else {47      await buildBrowserPackage(pkgName);48    }49  } else {50    if (watch) {51      // The limitation here is that we need to build browser packages after52      // packages compiled with Babel. This doesn't work out of the box because53      // `buildNodePackage` hangs forever in watch mode.54      stderr.write(55        error(56          `Can't build-watch all packages! Run ${italic(57            'build PACKAGE --watch'58          )} for one or more packages (in separate terminals)\n`59        )60      );61      return;62    }63    stdout.write(`Building packages...\n`);64    await Promise.all(nodePackages.map(buildNodePackage));65    stdout.write(`Building browser packages...\n`);66    await Promise.all(browserPackages.map(buildBrowserPackage));67    stdout.write(`Built ${buildablePackages.length} packages successfully.\n`);68  }69}70function getFormattedPackageList(pkgNames) {71  return ['', ...pkgNames].join('\n - ');72}73async function buildNodePackage(pkgName) {74  return runBuildTask({75    pkgName,76    cmd: 'babel',77    args: getBabelCliArgs(pkgName)78  });79}80async function buildBrowserPackage(pkgName) {81  return runBuildTask({82    pkgName,83    cmd: 'webpack',84    args: getWebpackCliArgs(pkgName),85    env: { NODE_ENV: 'production' }86  });87}...

babelNodePackage.js

Source:babelNodePackage.js

...25        // console.log('not found: ../../../.bin/babel')26    }27    return spawn(path, args)28}29function buildNodePackage(30    name,31    root,32    src,33    pathBuild,34    watch = false,35    babelArgs = ['--env-name', 'node', '--copy-files', '--extensions', '.ts', '--extensions', '.js', '--ignore', '**/*.d.ts'],36) {37    return new Promise((resolve, reject) => {38        const dist = path.resolve(root, pathBuild)39        let args = [root + '/' + src, ...babelArgs]40        if(watch) {41            args.push('-w')42        }43        args.push(...['--out-dir', dist])...

build-node-packages.js

Source:build-node-packages.js

1/*2  Copyright 2018 Google LLC3  Use of this source code is governed by an MIT-style4  license that can be found in the LICENSE file or at5  https://opensource.org/licenses/MIT.6*/7const gulp = require('gulp');8const buildNodePackage = require('./utils/build-node-package');9const packageRunnner = require('./utils/package-runner');10gulp.task('build-node-packages', gulp.series(11    packageRunnner(12        'build-node-packages',13        'node',14        buildNodePackage,15    ),...

slasp.js

Source:slasp.js

1var nijs = require('nijs');2exports.pkg = function(args) {3  return args.buildNodePackage()({4    name : "slasp-0.0.4",5    src : args.fetchurl()({6      url : new nijs.NixURL("http://registry.npmjs.org/slasp/-/slasp-0.0.4.tgz"),7      sha1 : "9adc26ee729a0f95095851a5489f87a5258d57a9"8    }),9    10    meta : {11      description : "SugarLess Asynchronous Structured Programming"12    }13  });...

nijs.js

Source:nijs.js

1var nijs = require('nijs');2exports.pkg = function(args) {3  return args.buildNodePackage()({4    name : "nijs-0.0.25",5    src : new nijs.NixFile({6      value : "../..",7      module : module8    }),9    deps : [10      args.optparse(),11      args.slasp()12    ],13    14    meta : {15      description : "An internal DSL for Nix in JavaScript"16    }17  });...

Jest Testing Tutorial

LambdaTest’s Jest Testing Tutorial covers step-by-step guides around Jest with code examples to help you be proficient with the Jest framework. The Jest tutorial has chapters to help you learn right from the basics of Jest framework to code-based tutorials around testing react apps with Jest, perform snapshot testing, import ES modules and more.

Chapters

What is Jest Framework
Advantages of Jest - Jest has 3,898,000 GitHub repositories, as mentioned on its official website. Learn what makes Jest special and why Jest has gained popularity among the testing and developer community.
Jest Installation - All the prerequisites and set up steps needed to help you start Jest automation testing.
Using Jest with NodeJS Project - Learn how to leverage Jest framework to automate testing using a NodeJS Project.
Writing First Test for Jest Framework - Get started with code-based tutorial to help you write and execute your first Jest framework testing script.
Jest Vocabulary - Learn the industry renowned and official jargons of the Jest framework by digging deep into the Jest vocabulary.
Unit Testing with Jest - Step-by-step tutorial to help you execute unit testing with Jest framework.
Jest Basics - Learn about the most pivotal and basic features which makes Jest special.
Jest Parameterized Tests - Avoid code duplication and fasten automation testing with Jest using parameterized tests. Parameterization allows you to trigger the same test scenario over different test configurations by incorporating parameters.
Jest Matchers - Enforce assertions better with the help of matchers. Matchers help you compare the actual output with the expected one. Here is an example to see if the object is acquired from the correct class or not. -

|it('check_object_of_Car', () => { expect(newCar()).toBeInstanceOf(Car); });| | :- |

Jest Hooks: Setup and Teardown - Learn how to set up conditions which needs to be followed by the test execution and incorporate a tear down function to free resources after the execution is complete.
Jest Code Coverage - Unsure there is no code left unchecked in your application. Jest gives a specific flag called --coverage to help you generate code coverage.
HTML Report Generation - Learn how to create a comprehensive HTML report based on your Jest test execution.
Testing React app using Jest Framework - Learn how to test your react web-application with Jest framework in this detailed Jest tutorial.
Test using LambdaTest cloud Selenium Grid - Run your Jest testing script over LambdaTest cloud-based platform and leverage parallel testing to help trim down your test execution time.
Snapshot Testing for React Front Ends - Capture screenshots of your react based web-application and compare them automatically for visual anomalies with the help of Jest tutorial.
Bonus: Import ES modules with Jest - ES modules are also known as ECMAScript modules. Learn how to best use them by importing in your Jest testing scripts.
Jest vs Mocha vs Jasmine - Learn the key differences between the most popular JavaScript-based testing frameworks i.e. Jest, Mocha, and Jasmine.
Jest FAQs(Frequently Asked Questions) - Explore the most commonly asked questions around Jest framework, with their answers.